#include "snapper/Log.h"
#include "snapper/Btrfs.h"
+#include "snapper/BtrfsUtils.h"
#include "snapper/File.h"
#include "snapper/Snapper.h"
#include "snapper/SnapperTmpl.h"
#include "snapper/SnapperDefines.h"
-#ifndef HAVE_LIBBTRFS
-
-#define BTRFS_IOCTL_MAGIC 0x94
-#define BTRFS_PATH_NAME_MAX 4087
-#define BTRFS_SUBVOL_NAME_MAX 4039
-#define BTRFS_SUBVOL_RDONLY (1ULL << 1)
-
-#define BTRFS_IOC_SNAP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 1, struct btrfs_ioctl_vol_args)
-#define BTRFS_IOC_SUBVOL_CREATE _IOW(BTRFS_IOCTL_MAGIC, 14, struct btrfs_ioctl_vol_args)
-#define BTRFS_IOC_SNAP_DESTROY _IOW(BTRFS_IOCTL_MAGIC, 15, struct btrfs_ioctl_vol_args)
-#define BTRFS_IOC_SNAP_CREATE_V2 _IOW(BTRFS_IOCTL_MAGIC, 23, struct btrfs_ioctl_vol_args_v2)
-
-struct btrfs_ioctl_vol_args
-{
- __s64 fd;
- char name[BTRFS_PATH_NAME_MAX + 1];
-};
-
-struct btrfs_ioctl_vol_args_v2
-{
- __s64 fd;
- __u64 transid;
- __u64 flags;
- __u64 unused[4];
- char name[BTRFS_SUBVOL_NAME_MAX + 1];
-};
-
-#endif
-
-
namespace snapper
{
}
- bool
- Btrfs::is_subvolume(const struct stat& stat) const
- {
- // see btrfsprogs source code
- return stat.st_ino == 256 && S_ISDIR(stat.st_mode);
- }
-
-
- bool
- Btrfs::create_subvolume(int fddst, const string& name) const
- {
- struct btrfs_ioctl_vol_args args;
- memset(&args, 0, sizeof(args));
-
- strncpy(args.name, name.c_str(), sizeof(args.name) - 1);
-
- return ioctl(fddst, BTRFS_IOC_SUBVOL_CREATE, &args) == 0;
- }
-
-
- bool
- Btrfs::create_snapshot(int fd, int fddst, const string& name) const
- {
- struct btrfs_ioctl_vol_args_v2 args_v2;
- memset(&args_v2, 0, sizeof(args_v2));
-
- args_v2.fd = fd;
- args_v2.flags = BTRFS_SUBVOL_RDONLY;
- strncpy(args_v2.name, name.c_str(), sizeof(args_v2.name) - 1);
-
- if (ioctl(fddst, BTRFS_IOC_SNAP_CREATE_V2, &args_v2) == 0)
- return true;
- else if (errno != ENOTTY && errno != EINVAL)
- return false;
-
- struct btrfs_ioctl_vol_args args;
- memset(&args, 0, sizeof(args));
-
- args.fd = fd;
- strncpy(args.name, name.c_str(), sizeof(args.name) - 1);
-
- return ioctl(fddst, BTRFS_IOC_SNAP_CREATE, &args) == 0;
- }
-
-
- bool
- Btrfs::delete_subvolume(int fd, const string& name) const
- {
- struct btrfs_ioctl_vol_args args;
- memset(&args, 0, sizeof(args));
-
- strncpy(args.name, name.c_str(), sizeof(args.name) - 1);
-
- return ioctl(fd, BTRFS_IOC_SNAP_DESTROY, &args) == 0;
- }
-
-
#ifdef HAVE_LIBBTRFS
virtual void cmpDirs(const SDir& dir1, const SDir& dir2, cmpdirs_cb_t cb) const;
- private:
-
- bool is_subvolume(const struct stat& stat) const;
-
- bool create_subvolume(int fddst, const string& name) const;
- bool create_snapshot(int fd, int fddst, const string& name) const;
- bool delete_subvolume(int fd, const string& name) const;
-
};
}
--- /dev/null
+/*
+ * Copyright (c) [2011-2013] Novell, Inc.
+ *
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as published
+ * by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, contact Novell, Inc.
+ *
+ * To contact Novell about this file by physical or electronic mail, you may
+ * find current contact information at www.novell.com.
+ */
+
+
+#include "config.h"
+
+#include <string.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <asm/types.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#ifdef HAVE_LIBBTRFS
+#include <btrfs/ioctl.h>
+#endif
+
+#include "snapper/Log.h"
+#include "snapper/BtrfsUtils.h"
+
+
+#ifndef HAVE_LIBBTRFS
+
+#define BTRFS_IOCTL_MAGIC 0x94
+#define BTRFS_PATH_NAME_MAX 4087
+#define BTRFS_SUBVOL_NAME_MAX 4039
+#define BTRFS_SUBVOL_RDONLY (1ULL << 1)
+
+#define BTRFS_IOC_SNAP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 1, struct btrfs_ioctl_vol_args)
+#define BTRFS_IOC_SUBVOL_CREATE _IOW(BTRFS_IOCTL_MAGIC, 14, struct btrfs_ioctl_vol_args)
+#define BTRFS_IOC_SNAP_DESTROY _IOW(BTRFS_IOCTL_MAGIC, 15, struct btrfs_ioctl_vol_args)
+#define BTRFS_IOC_SNAP_CREATE_V2 _IOW(BTRFS_IOCTL_MAGIC, 23, struct btrfs_ioctl_vol_args_v2)
+
+struct btrfs_ioctl_vol_args
+{
+ __s64 fd;
+ char name[BTRFS_PATH_NAME_MAX + 1];
+};
+
+struct btrfs_ioctl_vol_args_v2
+{
+ __s64 fd;
+ __u64 transid;
+ __u64 flags;
+ __u64 unused[4];
+ char name[BTRFS_SUBVOL_NAME_MAX + 1];
+};
+
+#endif
+
+
+namespace snapper
+{
+
+ bool
+ is_subvolume(const struct stat& stat)
+ {
+ // see btrfsprogs source code
+ return stat.st_ino == 256 && S_ISDIR(stat.st_mode);
+ }
+
+
+ bool
+ create_subvolume(int fddst, const string& name)
+ {
+ struct btrfs_ioctl_vol_args args;
+ memset(&args, 0, sizeof(args));
+
+ strncpy(args.name, name.c_str(), sizeof(args.name) - 1);
+
+ return ioctl(fddst, BTRFS_IOC_SUBVOL_CREATE, &args) == 0;
+ }
+
+
+ bool
+ create_snapshot(int fd, int fddst, const string& name)
+ {
+ struct btrfs_ioctl_vol_args_v2 args_v2;
+ memset(&args_v2, 0, sizeof(args_v2));
+
+ args_v2.fd = fd;
+ args_v2.flags = BTRFS_SUBVOL_RDONLY;
+ strncpy(args_v2.name, name.c_str(), sizeof(args_v2.name) - 1);
+
+ if (ioctl(fddst, BTRFS_IOC_SNAP_CREATE_V2, &args_v2) == 0)
+ return true;
+ else if (errno != ENOTTY && errno != EINVAL)
+ return false;
+
+ struct btrfs_ioctl_vol_args args;
+ memset(&args, 0, sizeof(args));
+
+ args.fd = fd;
+ strncpy(args.name, name.c_str(), sizeof(args.name) - 1);
+
+ return ioctl(fddst, BTRFS_IOC_SNAP_CREATE, &args) == 0;
+ }
+
+
+ bool
+ delete_subvolume(int fd, const string& name)
+ {
+ struct btrfs_ioctl_vol_args args;
+ memset(&args, 0, sizeof(args));
+
+ strncpy(args.name, name.c_str(), sizeof(args.name) - 1);
+
+ return ioctl(fd, BTRFS_IOC_SNAP_DESTROY, &args) == 0;
+ }
+
+}
--- /dev/null
+/*
+ * Copyright (c) [2011-2013] Novell, Inc.
+ *
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as published
+ * by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, contact Novell, Inc.
+ *
+ * To contact Novell about this file by physical or electronic mail, you may
+ * find current contact information at www.novell.com.
+ */
+
+
+#ifndef SNAPPER_BTRFS_UTILS_H
+#define SNAPPER_BTRFS_UTILS_H
+
+
+namespace snapper
+{
+
+ bool is_subvolume(const struct stat& stat);
+
+ bool create_subvolume(int fddst, const string& name);
+ bool create_snapshot(int fd, int fddst, const string& name);
+ bool delete_subvolume(int fd, const string& name);
+
+}
+
+
+#endif
if ENABLE_BTRFS
libsnapper_la_SOURCES += \
- Btrfs.cc Btrfs.h
+ Btrfs.cc Btrfs.h \
+ BtrfsUtils.cc BtrfsUtils.h
endif
if ENABLE_EXT4
projects / thirdparty / snapper.git / commitdiff
